platform_system_sepolicy/private/wifi_stack.te
Roshan Pius 3aa1c1725e sepolicy: Permission changes for new wifi mainline module
Move wifi services out of system_server into a separate APK/process.

Changes:
a) Created sepolicy for the new wifi apk.
b) The new APK will run with network_stack uid (eventually will be moved
to the same process).

Used 'audit2allow' tool to gather list of permissions required.

Note: The existing wifi related permissions in system_server is left
behind to allow the module to be loaded into system_server or
network_stack process depending on device configuration.

Bug: 113174748
Test: Device boots up and able to make wifi connection.
Test: Tested hotspot functionality.
Test: Ran WifiManagerTest & WifiSoftApTest ACTS tests locally.
Test: Will send for wifi regression tests.
Change-Id: Id19643a235bf0c28238f2729926b893ac2025b97
(cherry-picked from c7aa90091e6bec70a31a643cc4519a9a86fb0b38)
2019-07-16 13:30:15 -07:00

56 lines
1.8 KiB
Text

# Wifi Stack Mandatory
typeattribute wifi_stack coredomain;
app_domain(wifi_stack)
net_domain(wifi_stack)
# Data file accesses.
# Manage /data/misc/wifi.
allow wifi_stack wifi_data_file:dir create_dir_perms;
allow wifi_stack wifi_data_file:file create_file_perms;
allow wifi_stack radio_data_file:dir search;
# Property accesses
userdebug_or_eng(`
set_prop(wifi_stack, wifi_log_prop)
# Allow wifi_stack to read dmesg
# TODO(b/137085509): Remove this.
allow wifi_stack kernel:system syslog_read;
')
# ctl interface
# Perform Binder IPC.
binder_use(wifi_stack)
allow wifi_stack app_api_service:service_manager find;
allow wifi_stack network_score_service:service_manager find;
allow wifi_stack netd_service:service_manager find;
allow wifi_stack network_stack_service:service_manager find;
allow wifi_stack radio_service:service_manager find;
allow wifi_stack wificond_service:service_manager find;
allow wifi_stack wifiscanner_service:service_manager find;
binder_call(wifi_stack, system_server)
binder_call(wifi_stack, wificond)
binder_call(wifi_stack, network_stack)
# Perform HwBinder IPC.
hwbinder_use(wifi_stack)
hal_client_domain(wifi_stack, hal_wifi)
hal_client_domain(wifi_stack, hal_wifi_hostapd)
hal_client_domain(wifi_stack, hal_wifi_supplicant)
# Allow WifiService to start, stop, and read wifi-specific trace events.
allow wifi_stack debugfs_tracing_instances:dir search;
allow wifi_stack debugfs_wifi_tracing:dir search;
allow wifi_stack debugfs_wifi_tracing:file rw_file_perms;
# Connectivity
allow wifi_stack self:capability { net_bind_service net_admin net_raw };
allow wifi_stack self:packet_socket create_socket_perms_no_ioctl;
allow wifi_stack self:netlink_route_socket nlmsg_write;
allowxperm wifi_stack self:udp_socket ioctl priv_sock_ioctls;
# dumpstate support
allow wifi_stack dumpstate:fd use;
allow wifi_stack dumpstate:fifo_file write;